92. Выполнить указанные действия: 1) 6,2+0,43-(5,14+0,09); 2) 13,8+9,1-(5,9-3,8); 3) 8,4-3,8-(5,1-4,8); 4) 43-19,05-(13-7,06); 5) 1-0,156-(0,72-0,376); 6) 49,8+13,1+6-(17,1+2,56); 7) 4,4+7+11,32-(8,42-5,7); 8) 5,03+1,99+(4,1-2,7)-(5,83-4,97); 9) 2,8+3+5,2+(4,7-1,8)-(9,6-3,85); 10) 5,92-4,8-(34,2-34,16)+(2,7+1+0,05); 11) 12-(0,2+3,28+6,78-1,2)+(3,9-2,7); 12) 12+(14,2-6,28)+(3,33-2,23)-(4-2,6);

Решение: 1) $$6,2+0,43-(5,14+0,09) = 6,2+0,43-5,23 = 6,63-5,23 = \textbf{1,4}$$ 2) $$13,8+9,1-(5,9-3,8) = 13,8+9,1-2,1 = 22,9-2,1 = \textbf{20,8}$$ 3) $$8,4-3,8-(5,1-4,8) = 8,4-3,8-0,3 = 4,6-0,3 = \textbf{4,3}$$ 4) $$43-19,05-(13-7,06) = 43-19,05-5,94 = 23,95-5,94 = \textbf{18,01}$$ 5) $$1-0,156-(0,72-0,376) = 1-0,156-0,344 = 0,844-0,344 = \textbf{0,5}$$ 6) $$49,8+13,1+6-(17,1+2,56) = 49,8+13,1+6-19,66 = 68,9-19,66 = \textbf{49,24}$$ 7) $$4,4+7+11,32-(8,42-5,7) = 4,4+7+11,32-2,72 = 22,72-2,72 = \textbf{20}$$ 8) $$5,03+1,99+(4,1-2,7)-(5,83-4,97) = 5,03+1,99+1,4-0,86 = 7,02+1,4-0,86 = 8,42-0,86 = \textbf{7,56}$$ 9) $$2,8+3+5,2+(4,7-1,8)-(9,6-3,85) = 2,8+3+5,2+2,9-5,75 = 11+2,9-5,75 = 13,9-5,75 = \textbf{8,15}$$ 10) $$5,92-4,8-(34,2-34,16)+(2,7+1+0,05) = 5,92-4,8-0,04+3,75 = 1,12-0,04+3,75 = 1,08+3,75 = \textbf{4,83}$$ 11) $$12-(0,2+3,28+6,78-1,2)+(3,9-2,7) = 12-(10,26-1,2)+1,2 = 12-9,06+1,2 = 2,94+1,2 = \textbf{4,14}$$ 12) $$12+(14,2-6,28)+(3,33-2,23)-(4-2,6) = 12+7,92+1,1-1,4 = 20,02-1,4 = \textbf{18,62}$$